I have:
Tons of Bicycles (Red, blue) 50 or so of them.
Tally Ho's (Red, Blue, Vipers, both back designs)
Split Spades
Nuggets
Black Tigers
Ghosts
Series 1800's
A couple of vintage decks
A couple of masters, (both red and blue)
And probably more I can't think of.
For performance I either use Red / Blue Tally Ho's or Bikes. If I know the person I'll use Black tigers or Vipers. The reason being, if the spectator sees an awkward deck or cards, he or she will usually think it is gimmicked in some sort of way, even if it isn't.